function formatTime(date) {
  var year = date.getFullYear()
  var month = date.getMonth() + 1
  var day = date.getDate()

  var hour = date.getHours()
  var minute = date.getMinutes()
  var second = date.getSeconds()


  return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
}

function formatNumber(n) {
  n = n.toString()
  return n[1] ? n : '0' + n
}

module.exports = {
  formatTime: formatTime,
  parseHtml:parseHtml,
  json2Form:json2Form
}


function parseHtml(htmlBlock){
  var parser = new DOMParser();
  return parser.parseFromString(htmlBlock,"text/html")
}

function json2Form(json){
  var str = []
  for(var p in json){
    str.push(encodeURIComponent(p)+"="+encodeURIComponent(json[p]))
  }
  return str.join("&")
}